Praise the Quest Writers for they give life to otherwise boring expansions.
I was wrong about Blizzcon 2014 having nothing interesting to show off: There's a Robot Monk!
I am not touching the PvP realm issue but multi-character transfers are another topic altogether. It doesn't seem like an unreasonable suggestion for the players to be able to transfer a notable number of characters at once for a somewhat discounted price.
There are risks with the biggest ones being tied to individual realm economies but as long as the service is designed appropriately with smart limitations then I think the pros outweight the cons.